Why should antenna loading coils have a high ratio of reactance to resistance?
To swamp out harmonics
To lower the radiation angle
To maximize efficiency✓Richtige Antwort
To minimize the Q
Erklärung
The coil's reactance is the useful part — it cancels the antenna's capacitive reactance — while its series resistance only converts power to heat. A high ratio of reactance to resistance therefore delivers the required reactance with the least loss, maximizing efficiency.